Vv. Bryksin et Sn. Dorogovtsev, PUMPING OF A STATIC MAGNETIC-FIELD BY AN ALTERNATING-FIELD IN A TYPE-II SUPERCONDUCTOR, JETP letters, 57(7), 1993, pp. 455-459
When an alternating magnetic field is applied to a soft type-II superc
onductor, a static magnetic induction often arises in the interior of
the sample. An external field H-0 + H-1 sin (omegat) creates a static
induction B(infinity) much greater than H-0 in the interior under the
conditions H(c2) > H-1 much greater than H-0 > H(c1).